3M DP620NS

Harmonization Code : 3919.10.80 | Other self-adhesive plastic rolls not exceeding 20 cm wide.

3M DP620NS

Main features

  • 20-Minute Open Time
  • 1:1 Meter-Mix Processing
  • 19.9 MPa Aluminum Lap Shear

Product Description

3M™ Scotch-Weld™ Urethane Adhesive DP620NS Black is a rapid-setting, two-component polyurethane structural adhesive supplied in a 1:1 ratio duo-pak cartridge for use with the 3M™ EPX™ Applicator System. The components are automatically mixed and dispensed as a bubble-free, non-sag black paste. A 20-minute open time provides additional assembly time before parts must be joined and fixed, while handling strength is reached in approximately 4 hours at 23 °C. The cured adhesive combines 110% strain at break, 50 Shore D hardness, low-temperature flexibility, and a continuous temperature range of -51 to 121 °C. It bonds a range of metal, plastic, and fiber-reinforced substrates under the documented preparation conditions.

Key features

  • 20-minute open time: Provides a medium working window for positioning and assembling bonded parts.
  • Controlled 1:1 dispensing: Duo-pak packaging supports automatic mixing and bubble-free, non-sag application through the 3M™ EPX™ system.
  • Multi-substrate bonding: Documented overlap shear data cover aluminum, cold-rolled steel, ABS, polycarbonate, acrylic, fiber-reinforced plastic, and PVC.

Applications / Suitable for

  • Prototype building
  • Bonding dissimilar substrates
  • Structural adhesive and sealant applications in construction
  • General structural bonding and sealing
Product Family

3M DP620NS

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TDS, SDS & Technical Documents

Technical Specifications

General Properties
Appearance
Appearance at room temperature.
Black
Density (g)
B: 1.08–1.12/A: 1.14–1.19 g/cm3
Mix Ratio
The amount of a constituent divided by the total amount of all other constituents in a mixture
1:1
Solids
100 %
Work life @25°C
Work life is the amount of time we have to work with a material until it is no longer able to be easily worked and applied on a substrate. It is based on the change in viscosity and it can rely on the application requirements.
20 mins hours
Physical Properties
Open time
20 minutes
Viscosity (Part A)
1000 — 5000 mPa.s
Viscosity (Part B)
3000 — 6000 mPa.s
Mechanical Properties
Elongation
Elongation is the process of lengthening something. It is a percentage that measures the initial, unstressed, length compared to the length of the material right before it breaks. It is commonly referred to as Ultimate Elongation or Tensile Elongation at break.
110 %
Peel Strength
53 N/cm
Thermal Properties
Temperature Resistance
Temperature resistance is the maximum temperature that the material or product can withstand for a period of time. The temperatures listed should be considered as guidelines for an operating temperature of about 30 minutes. Typically, the material can withstand much longer times at temperatures about 20°C lower and can withstand much higher temperatures for short, intermittent times.
(-51)- 121 ˚C

Additional Information

Technical properties

As-supplied / before-processing properties

Typical values for the individual components and mixed adhesive. These values are representative and are not intended for specification purposes.

Property Value Unit Method / condition
Mixed color Black — Typical mixed adhesive
Mix ratio by volume 1:1 B:A As supplied in a duo-pak cartridge
Base density 1.08–1.12 — part B
Accelerator density 1.14–1.19 — part A
Base viscosity 3,000–6,000 cP 23 °C; Brookfield CP #52 at 50 rpm
Accelerator viscosity 1,000–5,000 cP 23 °C; Brookfield CP #52 at 50 rpm
Open time 20 min Maximum time after application before the bond is closed and fixed
Time to handling strength 4 h 23 °C; minimum time to reach 0.3 MPa overlap shear strength

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